具有开源许可证的Software as a Service (SaaS)版Shadow Daemon的替代方案

• Software as a Service (SaaS)
  所有平台 Windows Mac Linux Web Self-Hosted Software as a Service (SaaS) BSD VMware vSphere Hypervisor Microsoft Hyper-V Server NGINX VirtualBox Proxmox Virtual Environment
• 开源许可证
  任何牌照 免费许可证 开源许可证 商业牌照